Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. this week. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

77°F

25°C

Humidity 52%
Wind Speed Calm
Barometer 30.12 in (1012.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 29 Jul 8:53 am MDT
Extended Forecast for

2 Miles WNW Custer County Airport SD

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 87. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm.  Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 17 mph.  Chance of precipitation is 70%.

    Low: 61 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy through mid morning, then becoming sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 70%.

    High: 82 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. North wind 5 to 8 mph becoming calm  after midnight. Winds could gust as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 82 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Light and variable wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy through mid morning, then becoming sunny, with a high near 82. Calm wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Thursday Night
Mostly clear, with a low around 57. North wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Friday
A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 58. Southeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 64.
Monday
Mostly sunny, with a high near 84.
Monday Night
A slight chance of showers. Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Custer County Airport SD
 43.75°N 103.66°W (Elev. 5577 ft)
9:01 am MDT Jul 29, 2026
9am MDT Jul 29, 2026-6pm MDT Aug 4, 2026
 
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